[mythtv-users] How to get 5.1 dts spdif out from ac3 sources?

Richard Shaw hobbes1069 at gmail.com
Tue Jun 2 02:33:33 UTC 2009

On Mon, Jun 1, 2009 at 2:48 PM, Harry Coin <hcoin at quietfountain.com> wrote:

> My second mistake was setting the 'maximum channels' to 5.1.   The correct
> choice for multichannel digital output is 'stereo'.  Why that is correct
> when I actually want and have 5.1 output is confusing.
> I'll do my best to answer this part from previous posts I've read. I think
this only applies to analog out channels. When using digital audio, you only
ever have 2 real channels, it's just that the format (AC3 or DTS)
multiplexes the audio into 5.1 (6) or 6.1 (7) channels. I agree it's
confusing on the surface and I'm not sure that expecting the average user to
understand this is a good idea. I haven't messed with it lately but I know
that there is often additional info on the bottom of the setup screens. I
wonder if something to this affect could be added to clairify. I suppose
another option would be to add the logic to Myth to have it make the right
choice anyway since it must be set to 2 channels for digital audio.

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